Composite insulation zinc oxide lightning arrester

Abstract

The utility model provides a composite insulation zinc oxide lightning arrester which comprises a lightning arrester body, a lightning arrester core body is arranged in the lightning arrester body, and a protective sleeve is arranged on the outer side of the lightning arrester core body; a first cavity and a second cavity are formed in the protective sleeve, and the first cavity is communicated with the second cavity. Furthermore, an anti-explosion ring is arranged between the first cavity and the second cavity, and a sealing assembly is arranged on the anti-explosion ring. A hole is formed in the sealing assembly. According to the utility model, the explosion-proof ring is additionally arranged below the sealing assembly, so that the hole is sealed. When the hot pressure generated in the second cavity is too large, the anti-explosion ring is thermally damaged along with time migration, at the moment, the hot pressure of the second cavity passes through the damaged anti-explosion ring and then enters the first cavity through the hole, the hot pressure in the second cavity is relieved, and therefore the phenomenon that due to the fact that the hot pressure is too large, the anti-explosion ring is damaged is prevented to the maximum extent. And the product is damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of reference power equipment, and particularly relates to a composite insulating zinc oxide arrester. Background Art

[0002] Lightning arrester is a kind of electrical device used to protect electrical equipment from high transient overvoltage and limit the follow-up time and often limit the follow-up amplitude. Lightning arrester can release lightning or release the overvoltage energy of power system operation to protect electrical equipment from transient overvoltage.

[0003] With the advancement of science and technology, people's requirements for the performance and reliability of lightning protection equipment are constantly increasing. Zinc oxide lightning arresters have advanced technologies such as nanosecond response speed and low residual voltage, which can meet the market's demand for high-performance and high-reliability products.

[0004] However, the existing zinc oxide lightning arrester will continue to generate heat during operation under long-term voltage. As time accumulates, thermal damage will occur and even cause the product to explode.

[0005] In view of this, how to solve the defects existing in the above technical solutions has become one of the problems to be solved urgently in the field of reference power equipment technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the purpose of the utility model is to overcome the shortcomings of the prior art and provide a composite insulated zinc oxide lightning arrester to solve the problem that the existing zinc oxide lightning arrester will continue to generate heat during operation under long-term voltage, and will suffer thermal damage over time and even cause the product to explode.

[0007] The utility model is realized by the following technical scheme, and discloses a composite insulating zinc oxide arrester, comprising:

[0008] Arrester body;

[0009] The arrester core is arranged in the arrester body;

[0010] A protective sleeve is used to wrap the arrester core, and

[0011] A first cavity and a second cavity are arranged in the protective cover, and the first cavity and the second cavity are communicated with each other.

[0012] Preferably, an explosion-proof ring is provided between the first cavity and the second cavity, and

[0013] The explosion-proof ring is provided with a sealing component;

[0014] The sealing component is provided with a hole.

[0015] Preferably, a second elastic body is fixedly installed on the top of the arrester core body near the first cavity position, and

[0016] The other end of the second elastic body is fixedly mounted on the bottom end surface of the explosion-proof ring.

[0017] Preferably, a second elastic body is fixedly mounted on one side of the sealing assembly away from the explosion-proof ring, and the other end of the second elastic body is mounted on the inner top end of the protective sleeve, and

[0018] The second elastic body is located in the first cavity.

[0019] Preferably, the protective cover is installed with a high-voltage terminal wiring assembly.

[0020] Preferably, the bottom end of the arrester core is provided with an explosion-proof end, and

[0021] A disconnect device is connected through the explosion-proof end, and

[0022] The disconnecting device is mounted on the protective cover.

[0023] Preferably, a resistor is provided below the disconnecting device, and

[0024] A cavity is provided between the resistor sheet and the bottom end of the arrester core.

[0025] The disconnecting device is installed in the cavity through a connecting piece.

[0026] Preferably, the disconnect device is provided with a mounting member, and

[0027] The mounting member is provided with a slot, and

[0028] The tank is filled with chemical materials.

[0029] Preferably, the sealing component is made of silicone rubber material.

[0030] In summary, the beneficial effects of the utility model are:

[0031] (1) The utility model provides a first cavity and a second cavity in the protective sleeve, and an explosion-proof ring is provided between the first cavity and the second cavity, and a sealing component is provided on the explosion-proof ring, and a hole is provided on the sealing component. When the thermal pressure generated in the second cavity is too large, the explosion-proof ring will be thermally damaged over time. At this time, the thermal pressure of the second cavity will pass through the damaged explosion-proof ring and then enter the first cavity through the hole, thereby relieving the thermal pressure in the second cavity, thereby preventing the product from being damaged due to excessive thermal pressure to the greatest extent.

[0032] (2) In the utility model, a high-voltage terminal wiring assembly is fixedly installed on the top of a protective sleeve near the second elastomer by fastening bolts, so that the inner top of the protective sleeve abuts against the second elastomer, and the second elastomer is pressed against the sealing assembly. At the same time, the elastic force of the first elastomer in the first cavity produces a certain support, thereby pressing the sealing assembly and the explosion-proof ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the overall structure of an embodiment of a composite insulated zinc oxide arrester of the utility model;

[0034] Figure 2 A partial structural schematic diagram of an embodiment of a composite insulated zinc oxide arrester of the utility model;

[0035] Figure 3 The present invention is a schematic diagram of the structure of a disconnection device provided in one embodiment of a composite insulated zinc oxide arrester of the present invention.

[0036] Reference numerals:

[0037] 100. Arrester body;

[0038] 10. High voltage terminal wiring assembly;

[0039] 20. Lightning arrester core;

[0040] 30. Protective cover;

[0041] 40. Valve group;

[0042] 50. Second cavity;

[0043] 60, first cavity; 601, first elastic body; 602, sealing assembly; 603, hole; 604, explosion-proof ring; 605, second elastic body;

[0044] 70, disconnect device; 701, tank; 702, mounting member; 703, cavity; 704, connector; 707, low-voltage terminal wiring assembly; 708, explosion-proof end;

[0045] 90. Resistor. DETAILED DESCRIPTION

[0046] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0048] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the accompanying drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a thorough understanding of the utility model and to fully convey the concept of the utility model to those skilled in the art.

[0049] See also Figures 1 to 3 As shown, an embodiment of the utility model provides a composite insulated zinc oxide arrester, comprising an arrester body 100, wherein an arrester core 20 is disposed in the arrester body 100, and a protective cover 30 is disposed outside the arrester core 20;

[0050] The protective cover 30 is provided with a first cavity 60 and a second cavity 50 , and the first cavity 60 and the second cavity 50 are communicated with each other.

[0051] Furthermore, an explosion-proof ring 604 is provided between the first cavity 60 and the second cavity 50, and a sealing component 602 is provided on the explosion-proof ring 604, and the sealing component 602 is made of silicone rubber material; a hole 603 is provided on the sealing component 602. By adding the explosion-proof ring 604 below the sealing component 602, the hole 603 is sealed.

[0052] In actual applications, when the thermal pressure generated in the second cavity 50 is too large, the explosion-proof ring will be thermally damaged over time. At this time, the thermal pressure of the second cavity will pass through the damaged explosion-proof ring and then enter the first cavity through the hole 6023, thereby relieving the thermal pressure in the second cavity, thereby preventing damage to the product due to excessive thermal pressure to the greatest extent.

[0053] In actual application, the explosion-proof ring may fall off. To solve the above defects, please refer to Figures 1 to 3 As shown, a second elastic body 605 is fixedly installed on the top of the arrester core 20 near the first cavity 60, and the other end of the second elastic body 605 is fixedly installed on the bottom end surface of the explosion-proof ring, and the second elastic body 605 is preferably a spring;

[0054] A second elastic body 601 is fixedly installed on one side of the sealing assembly away from the explosion-proof ring, and the other end of the second elastic body 601 is fixedly installed on the inner top of the protective sleeve 30 by a fastening bolt, and the second elastic body is located in the first cavity, and the second elastic body is preferably a spring;

[0055] A high-voltage terminal wiring assembly 10 is fixedly installed on the top of the protective sleeve close to the second elastic body by fastening bolts.

[0056] In this embodiment, in actual application, a high-voltage terminal wiring assembly 10 is fixedly installed on the top of a protective sleeve close to the second elastomer by fastening bolts, and then the top of the inner part of the protective sleeve is abutted against the second elastomer 601, and at the same time, the second elastomer 601 is pressed against the sealing assembly 602. At the same time, the elastic force of the first elastomer in the first cavity produces a certain support, thereby pressing the sealing assembly and the explosion-proof ring.

[0057] See also Figures 1 to 3 As shown, the bottom end of the arrester core 20 is provided with an explosion-proof end 708, and the disconnecting device 70 is connected through the explosion-proof end 708, and the disconnecting device 70 is fixedly installed on the protective cover, so that the lightning arrester core is installed on the protective cover 30, and the explosion-proof end 708 can be damaged by force;

[0058] A resistor sheet 90 is disposed below the disconnecting device 70 , and a cavity is disposed between the resistor sheet 90 and the bottom end of the arrester core 20 , and the disconnecting device 70 is fixedly installed in the cavity via a connector 704 .

[0059] Furthermore, the disconnecting device 70 is provided with a mounting member 702, and a groove 701 is formed on the mounting member 702, and the groove 701 is filled with a chemical material, and the chemical material is preferably ammonium chloride.

[0060] In this embodiment, when the zinc oxide lightning arrester operates under a long voltage, it will continue to generate heat. When it reaches the maximum value, the chemical materials in the mounting part will react chemically and release a large amount of gas. The air pressure increases, which in turn causes damage to the explosion-proof end. When the explosion-proof end is damaged, the connection between the lightning arrester core and the protective cover can be released, thereby improving safety.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not restrictive. Although the utility model is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A composite insulated zinc oxide arrester, characterized in that: include: Arrester body; The arrester core is arranged in the arrester body; A protective sleeve is used to wrap the arrester core, and A first cavity and a second cavity are provided in the protective cover, and the first cavity and the second cavity are communicated with each other; An explosion-proof ring is provided between the first cavity and the second cavity, and The explosion-proof ring is provided with a sealing component; The sealing component is provided with a hole.

2. A composite insulated zinc oxide arrester according to claim 1, characterized in that: A second elastic body is fixedly installed on the top of the arrester core near the first cavity position, and The other end of the second elastic body is fixedly mounted on the bottom end surface of the explosion-proof ring.

3. A composite insulated zinc oxide arrester according to claim 1, characterized in that: A second elastic body is fixedly mounted on one side of the sealing assembly away from the explosion-proof ring, and the other end of the second elastic body is mounted on the inner top end of the protective sleeve, and The second elastic body is located in the first cavity.

4. A composite insulated zinc oxide arrester according to claim 1, characterized in that: The protective cover is equipped with a high voltage terminal wiring assembly.

5. A composite insulated zinc oxide arrester according to claim 1, characterized in that: The bottom end of the arrester core is provided with an explosion-proof end, and A disconnect device is connected through the explosion-proof end, and The disconnecting device is mounted on the protective cover.

6. A composite insulated zinc oxide arrester according to claim 5, characterized in that: A resistor is provided below the disconnecting device, and A cavity is provided between the resistor sheet and the bottom end of the arrester core. The disconnecting device is installed in the cavity through a connecting piece.

7. A composite insulated zinc oxide arrester according to claim 5, characterized in that: The disconnect device is provided with a mounting member, and The mounting member is provided with a slot, and The tank is filled with chemical materials.

8. A composite insulated zinc oxide arrester according to claim 1, characterized in that: The sealing component is made of silicone rubber material.

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